Default `AutoMooncake`?

The AutoMooncake docs state: > - `config`: either `nothing` or an instance of `Mooncake.Config` -- see the docstring of `Mooncake.Config` for more information. `AutoMooncake(; config=nothing)` is equivalent to `AutoMooncake(; config=Mooncake.Config())`, i.e. the default configuration. so can `config=nothing` be the default? Why do I need to explicitly write `config=nothing`? @gdalle